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RESEARCH PRODUCT
Matrix isolation and quantum chemical studies on the H2O2–SO2complex
Markku RäsänenMika PetterssonSusanna PehkonenJan LundellLeonid Khriachtchevsubject
010304 chemical physicsPhotodissociationMatrix isolationGeneral Physics and Astronomy010402 general chemistry7. Clean energy01 natural sciences0104 chemical scienceschemistry.chemical_compoundMatrix (mathematics)chemistryComputational chemistryAb initio quantum chemistry methods0103 physical sciencesSulfur trioxidePhysical chemistryPhysical and Theoretical ChemistryFourier transform infrared spectroscopyHydrogen peroxideSulfur dioxidedescription
Complexation and photochemical reactions of hydrogen peroxide and sulfur dioxide have been studied in solid Ar, Kr and Xe. Complexes between H2O2 and SO2 are characterized using Fourier transform infrared spectroscopy and ab initio calculations. In solid Ar, the H2O2–SO2 complex absorptions are found at wavenumbers of 3572.8, 3518.7, 3511.2, 3504.3, 1340.3, 1280.2 and 1149.9 cm−1. In Kr and Xe matrices, the bonded OH stretching frequencies deviate from the values in Ar, and we propose that the matrix surrounding influences the structure of the H2O2–SO2 complex. UV photolysis of the H2O2–SO2 was also studied in solid Ar, Kr and Xe. This photolysis produces mainly a complex between sulfur trioxide and water via in-cage reaction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-01 | Phys. Chem. Chem. Phys. |